/usr/share/menu/mah-jong is in mah-jong 1.11-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | ?package(mah-jong):needs="X11" section="Games/Card"\
title="Mah-Jong" command="/usr/games/xmj"
|